Joaquim Sarmento, a Portuguese diplomat and politician who as foreign minister in the early 1980s negotiated his country’s entry into the European Community, closing a decade of upheaval that had begun with a revolution and ended with a treaty, died on Saturday in Lisbon. He was 93.
His death was announced by the Portuguese presidency, which ordered two days of official mourning. His family said he died at home after a short illness.
Mr. Sarmento came to the foreign ministry in 1980 at a moment when Portugal, six years out from the overthrow of a 48-year dictatorship, was among the poorest countries in Western Europe, with a per capita income less than half the Community average, a collapsing colonial inheritance and a political class that had changed governments nine times since 1976. The application to join the Community, filed in 1977, had stalled on agriculture, on fisheries and on the fear in Paris and Bonn that Portugal and Spain together would be a weight the club could not carry.
Over five years and, by his own count, 112 trips to Brussels, he unstalled it. The treaty of accession was signed in June 1985 in the cloister of the Jerónimos Monastery in Lisbon, and Portugal joined on Jan. 1, 1986. Mr. Sarmento, who had been told by a French counterpart in 1981 that Portugal would be ready “in a generation,” was reported to have replied that his country had waited 48 years and could manage 48 months.
“He had the gift of making the Europeans feel that letting Portugal in was their idea,” said Prof. Maria Helena Vasconcelos, a historian of Portuguese foreign policy at the University of Coimbra. “And he had the harder gift of making the Portuguese feel that the concessions he made were not surrender. Both of those were partly true, which is what diplomacy is.”
Joaquim António Sarmento de Castro was born on Aug. 19, 1933, in Viseu, in the north-central interior, the son of a notary and a piano teacher. He studied law in Coimbra, entered the diplomatic service in 1958, and served in Rio de Janeiro, Washington and at the United Nations, where he was, by his own later account, “the man who explained the unexplainable” on behalf of a regime fighting colonial wars in Africa. He resigned from the service in 1972, a decision he described as late, and practiced law until the revolution of April 1974 brought him back as an adviser on European affairs.
After leaving the ministry in 1985 he served two terms in the European Parliament and one as Portugal’s ambassador to the Community, and wrote three volumes of memoirs that are valued by historians for their candor about colleagues and their silence about himself. He opposed, from the back benches of his party, the austerity program imposed on Portugal after the 2011 bailout, arguing in a widely circulated speech that a Europe that could not tell the difference between a partner and a debtor had forgotten what it was for.
He was, to the end, an unapologetic European. In an interview on the 40th anniversary of accession, in January, he was asked whether the country had given up too much. “We gave up being alone,” he said. “I have never met a Portuguese person under 50 who wants it back.”
His wife, Luísa Sarmento, a translator, died in 2019. He is survived by two sons, Pedro and Francisco; a daughter, Teresa; and nine grandchildren. A state funeral will be held on Tuesday at the Jerónimos Monastery, in the cloister where the treaty was signed.
A version of this article appears in print on Oct. 12, 2026, Section A, Page 11 of the European edition with the headline: Joaquim Sarmento, Who Steered Portugal Into the European Community, Dies at 93.

